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Standard fields

Most standard fields use the same naming conventions as Wireshark display fields. However, there are some subtle differences between Cloudflare and Wireshark:

  • Wireshark supports CIDR (Classless Inter-Domain Routing) notation for expressing IP address ranges in equality comparisons (ip.src == 1.2.3.0/24, for example). Cloudflare does not.

    To evaluate a range of addresses using CIDR notation, use the in comparison operator as in this example: ip.src in {1.2.3.0/24 4.5.6.0/24}.

  • In Wireshark, ssl is a protocol field containing hundreds of other fields of various types that are available for comparison in multiple ways. However, in the Rules language ssl is a single Boolean field that indicates whether the connection from the client to Cloudflare is encrypted.

  • The Cloudflare Rules language does not support the slice operator.

The Cloudflare Rules language supports these standard fields.

http.cookie

http.cookie String

The entire cookie as a string.

Example value:

session=8521F670545D7865F79C3D7BEDC29CCE;-background=light

http.host

http.host String

The hostname used in the full request URI.

Example value:

www.example.org

http.referer

http.referer String

The HTTP Referer request header, which contains the address of the web page that linked to the currently requested page.

Example value:

Referer: htt­ps://developer.example.org/en-US/docs/Web/JavaScript

http.request.full_uri

http.request.full_uri String

The full URI as received by the web server (does not include #fragment, which is not sent to web servers).

Example value:

htt­ps://www.example.org/articles/index?section=539061&expand=comments

http.request.method

http.request.method String

The HTTP method, returned as a string of uppercase characters.

Example value:

GET

http.request.cookies

http.request.cookies Map<Array<String>>

The Cookie HTTP header associated with a request represented as a Map (associative array). The cookie values are not pre-processed and retain the original case used in the request.

Decoding: The cookie names are URL decoded. If two cookies have the same name after decoding, their value arrays are merged.

Example:

any(http.request.cookies["app"][*] == "test")

Example value:

{ "app": ["test"] }

http.request.timestamp.sec

http.request.timestamp.sec Integer

The timestamp when Cloudflare received the request, expressed as UNIX time in seconds. This value is 10 digits long.

To obtain the timestamp milliseconds, use the http.request.timestamp.msec field.

Example value:

1484063137

When validating HMAC tokens in an expression, pass this field as the currentTimestamp argument to the is_timed_hmac_valid_v0() validation function.

http.request.timestamp.msec

http.request.timestamp.msec Integer

The millisecond when Cloudflare received the request, between 0 and 999.

To obtain the complete timestamp, use both http.request.timestamp.sec and http.request.timestamp.msec fields.

Example value:

857

Here is the formatted information for the provided rows:

http.request.uri

http.request.uri String

The URI path and query string of the request.

Example value:

/articles/index?section=539061&expand=comments

http.request.uri.path

http.request.uri.path String

The URI path of the request.

Example value:

/articles/index

http.request.uri.path.extension

http.request.uri.path.extension String

The lowercased file extension in the URI path without the dot (.) character. This corresponds to the string after the last dot in the URI path, excluding the query string.

If the first character of the last path segment is a dot and the segment does not contain other dot characters, the field value will be an empty string (""). Having a dot as the first character does not represent a file extension and is commonly used in UNIX-like systems to denote a hidden file or directory.

Example values:

  • If the URI path is /articles/index.html, the field value will be html.
  • If the URI path is /articles/index., the field value will be an empty string ("").

Example values

URI pathField value
/foo""
/foo.mp3"mp3"
/.mp3""
/.foo.mp3"mp3"
/foo.tar.bz2"bz2"
/foo.""
/foo.MP3"mp3"

http.request.uri.query

http.request.uri.query String

The entire query string, without the ? delimiter.

Example value:

section=539061&expand=comments

http.user_agent

http.user_agent String

The HTTP User-Agent request header, which contains a characteristic string to identify the client operating system and web browser.

Example value:

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

http.request.version

http.request.version String

The version of the HTTP protocol used. Use this field when different checks are needed for different versions.

Example values:

  • HTTP/1.1
  • HTTP/3

http.x_forwarded_for

http.x_forwarded_for String

The full X-Forwarded-For HTTP header.

Example value:

203.0.113.195, 70.41.3.18

ip.src

ip.src IP address

The client TCP IP address, which may be adjusted to reflect the actual address of the client using HTTP headers such as X-Forwarded-For or X-Real-IP.

Example value:

93.184.216.34

ip.src.lat

ip.src.lat String

The latitude associated with the client IP address.

Example value:

37.78044

ip.src.lon

ip.src.lon String

The longitude associated with the client IP address.

Example value:

-122.39055

ip.src.city

ip.src.city String

The city associated with the client IP address.

Example value:

San Francisco

ip.src.postal_code

ip.src.postal_code String

The postal code associated with the incoming request.

Example value:

78701

ip.src.metro_code

ip.src.metro_code String

The metro code or Designated Market Area (DMA) code associated with the incoming request.

Example value:

635

ip.src.region

ip.src.region String

The region name associated with the incoming request.

Example value:

Texas

ip.src.region_code

ip.src.region_code String

The region code associated with the incoming request.

Example value:

TX

ip.src.timezone.name

ip.src.timezone.name String

The name of the timezone associated with the incoming request. This field is only available in rewrite expressions of Transform Rules.

Example value:

America/Chicago

ip.src.asnum

ip.src.asnum Number

The 16-bit or 32-bit integer representing the Autonomous System (AS) number associated with the client IP address.

This field has the same value as the ip.geoip.asnum field, which is deprecated. The ip.geoip.asnum field is still available for new and existing rules, but you should use the ip.src.asnum field instead.

ip.src.continent

ip.src.continent String

The continent code associated with the client IP address:

  • AF: Africa
  • AN: Antarctica
  • AS: Asia
  • EU: Europe
  • NA: North America
  • OC: Oceania
  • SA: South America
  • T1: Tor network

This field has the same value as the ip.geoip.continent field, which is deprecated. The ip.geoip.continent field is still available for new and existing rules, but you should use the ip.src.continent field instead.

ip.src.country

ip.src.country String

The 2-letter country code in ISO 3166-1 Alpha 2 format.

Example value:

GB

For more information on the ISO 3166-1 Alpha 2 format, refer to ISO 3166-1 Alpha 2 on Wikipedia.

This field has the same value as the ip.geoip.country field, which is deprecated. The ip.geoip.country field is still available for new and existing rules, but you should use the ip.src.country field instead.

ip.src.subdivision_1_iso_code

ip.src.subdivision_1_iso_code String

The ISO 3166-2 code for the first-level region associated with the IP address. When the actual value is not available, this field contains an empty string.

Example value:

GB-ENG

For more information on the ISO 3166-2 standard and the available regions, refer to ISO 3166-2 on Wikipedia.

This field has the same value as the ip.geoip.subdivision_1_iso_code field, which is deprecated. The ip.geoip.subdivision_1_iso_code field is still available for new and existing rules, but you should use the ip.src.subdivision_1_iso_code field instead.

ip.src.subdivision_2_iso_code

ip.src.subdivision_2_iso_code String

The ISO 3166-2 code for the second-level region associated with the IP address. When the actual value is not available, this field contains an empty string.

Example value:

GB-SWK

For more information on the ISO 3166-2 standard and the available regions, refer to ISO 3166-2 on Wikipedia.

This field has the same value as the ip.geoip.subdivision_2_iso_code field, which is deprecated. The ip.geoip.subdivision_2_iso_code field is still available for new and existing rules, but you should use the ip.src.subdivision_2_iso_code field instead.

ip.src.is_in_european_union

ip.src.is_in_european_union Boolean

Returns true when the request originates from a country in the European Union (EU).

Countries in the EU (from geolocation data)

Country codeCountry name
ATAustria
AXÅland Islands
BEBelgium
BGBulgaria
CYCyprus
CZCzechia
DEGermany
DKDenmark
EEEstonia
ESSpain
FIFinland
FRFrance
GFFrench Guiana
GPGuadeloupe
GRGreece
HRCroatia
HUHungary
IEIreland
ITItaly
LTLithuania
LULuxembourg
LVLatvia
MFSaint Martin
MQMartinique
MTMalta
NLThe Netherlands
PLPoland
PTPortugal
RERéunion
RORomania
SESweden
SISlovenia
SKSlovakia
YTMayotte

The EU country list was obtained from MaxMind's GeoIP2 database on 2023-12-05. For details on obtaining up-to-date country information, refer to the MaxMind website.

This field has the same value as the ip.geoip.is_in_european_union field, which is deprecated. The ip.geoip.is_in_european_union field is still available for new and existing rules, but you should use the ip.src.is_in_european_union field instead.

raw.http.request.full_uri

raw.http.request.full_uri String

The raw full URI as received by the web server without the URI fragment (if any) and without any transformation.

This is the raw field version of the http.request.full_uri field. Raw fields, prefixed with raw., preserve original request values for later evaluations. These fields are immutable during the entire request evaluation workflow, and they are not affected by the actions of previously matched rules.

Note: This raw field may include some basic normalization done by Cloudflare's HTTP server. However, this can change in the future.

raw.http.request.uri

raw.http.request.uri String

The raw URI path and query string of the request without any transformation.

This is the raw field version of the http.request.uri field. Raw fields, prefixed with raw., preserve original request values for later evaluations. These fields are immutable during the entire request evaluation workflow, and they are not affected by the actions of previously matched rules.

Note: This raw field may include some basic normalization done by Cloudflare's HTTP server. However, this can change in the future.

raw.http.request.uri.path

raw.http.request.uri.path String

The raw URI path of the request without any transformation.

This is the raw field version of the http.request.uri.path field. Raw fields, prefixed with raw., preserve original request values for later evaluations. These fields are immutable during the entire request evaluation workflow, and they are not affected by the actions of previously matched rules.

Note: This raw field may include some basic normalization done by Cloudflare's HTTP server. However, this can change in the future.

raw.http.request.uri.path.extension

raw.http.request.uri.path.extension String

The raw file extension in the request URI path without any transformation.

This is the raw field version of the http.request.uri.path.extension field. Raw fields, prefixed with raw., preserve original request values for later evaluations. These fields are immutable during the entire request evaluation workflow, and they are not affected by the actions of previously matched rules.

raw.http.request.uri.query

raw.http.request.uri.query String

The entire query string without the ? delimiter and without any transformation.

This is the raw field version of the http.request.uri.query field. Raw fields, prefixed with raw., preserve original request values for later evaluations. These fields are immutable during the entire request evaluation workflow, and they are not affected by the actions of previously matched rules.

Note: This raw field may include some basic normalization done by Cloudflare's HTTP server. However, this can change in the future.

ssl

ssl Boolean

Returns true when the HTTP connection to the client is encrypted.


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